Hammer-head



FIG. 1 is a front view of my hammer-head design;

FIG. 2 is a back view of my hammer-head design;

FIG. 3 is a right-side view of my hammer-head design;

FIG. 4 is a left-side view of my hammer-head design;

FIG. 5 is a top view of my hammer-head design;

FIG. 6 is a bottom view of my hammer-head design; and,

FIG. 7 is a perspective view of my hammer-head design.

The broken line showing of the bottom edge and bottom surface forms no part of the claimed design. 

The ornamental design for a hammer-head, substantially as shown and described. 